2033780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 4972800

約数和(自身を除く): 2939020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 199, 292, 365, 398, 511, 730, 796, 995, 1022, 1393, 1460, 1990, 2044, 2555, 2786, 3980, 5110, 5572, 6965, 10220, 13930, 14527, 27860, 29054, 58108, 72635, 101689, 145270, 203378, 290540, 406756, 508445, 1016890, 2033780]

約数ペア:

[(1, 2033780), (2, 1016890), (4, 508445), (5, 406756), (7, 290540), (10, 203378), (14, 145270), (20, 101689), (28, 72635), (35, 58108), (70, 29054), (73, 27860), (140, 14527), (146, 13930), (199, 10220), (292, 6965), (365, 5572), (398, 5110), (511, 3980), (730, 2786), (796, 2555), (995, 2044), (1022, 1990), (1393, 1460)]